Pumping device.



PUMHNG DEVICE. APPLIQA'IQN, ULEB JUN'ES0,1910,

Patented. Fen 13, 1912] NITED STATES PArnNTorricn THOMAS DANQUARD, OFNEW YORK, N. yY., ASSIGNOR TC -AU'IO PNEUMATIC ACTION l' CO., ACORPORATION OF NEW YORK.

Specification of Letters Patent.

PUMPING DEVICE.

Patented Feb. 13, 1912.

Application filed .Tune B0, 1910. Serial No. 569,773.

To all 'whom t may concern.'

Be itknown that I, THOMAS DANQUARD,

a citizen of the United States, residing at New York, in the county ofNew York and State of New York, have invented a new and useful PumpingDevice, of which the following -is a specification.

This invention relates to a. bellows and folding pedal construction fora musical in strument. l

The principalobjects of 'me invention are to provide a'simple andeffective construction by which the bellows can bevoperated from a pedallocated at the side thereof in such a way as to get a perfectly evenstrain on the bellows, thus doing away with the` Vloss of power producedby the usual sidey connections and reducing thestrain on the parts. l

Another object of the invention is to pro vide means for accomplishingthe above named results which can be connected with a folding pedal,particularly that type of folding pedal shown and described in my 14,1908 on a folding pedal.

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which- Figure lis a transverse sectional view of a portion of a piano case showing apreferred embodiment of this invention in side elevation with the pedalsin operative po sition; F ig.2 is a similar view showing the pedalsfolded into the case; Fig. 3 is a vfront elevation of the same; and Fig.4 is a similar View cfa modification also coming Withinhe scope of thisinvention;

lThe invention is shown as appliedto a piano case A provided with anopening l0 at its front sidefwhich may be closed by any of theusualgdoois or other .devices when the pedals are not in use. Attliebottom ofeit` is a lower rail l1. A brace or wind box 12 extendscrosswise of the case. The .rigid leaves 13 of the bellows are securedto said brace and to brackets 14 and the movable leaves or members l5 ofthe bellows are pivoted near the topv of the rigid leaves. Y.

18 designates a pedal support which may have small feet provided withrubber cushions. The pedals P-P are hinged or piv- '55 oted to thissupport. Rigidly secured to previous Patent No. 884,643 granted Aprilthe support are braces 20, shown herein as bent over the lower rail 11so as to lit closely to it when the pedals are in operative position andas being pivoted to the brackets 14 behind the lower rail.

It will lbe understood that the parts so far described are shown hereinin substantially the same form as they appear in the fabove mentionedpatent, and that they are so shown to illust-rate how this invention canbe applied toa folding pedal construction. It will be obvious that theinvention is applicable to other types of folding pedals.

. It will Vbe understood that each pedal is shown in Figs.` 3 and 4 inposition at the side of the bellows itoperates, or betweerl the two, sothat the pedals are not in line with the centers of the bellows. This isthc usual location and as a consequence of'this it has been customaryheretofore to provide a pitman or link to'eonneet each pedal with itsbellows located substantially between the pedal and bellows andconnected with the edges of both. struction there has been an unevenstrain on the movable leaf of the bellows, and the pedals have a springyfeeling when they are being operated. Moreover, ion account of this sideconnection the hinged ioint at the top of the bellows is strained andconsiderable power is lost, thus adding to the difficulty of pumping. Toobviate these dithcultics each pedal in this case is connected with thebellows by means of a link 1S) and an arm Q5. This arm is fixed to ahorizontal shaft 26 mounted. in bearings in brackets Q7 that are locatedou the fixed leaf of the bellows. Therefore the operation of the pedalwill result in oscillating the shaft. The shaft is provided with anotherarm 28 which extends down at the end of the shaft and in the center ofthe bellows and is connected by a link 29 'with a bracket SiO-fixed tothe bottom of the movable leaf and in the center thereof. By thisconstruction it will be seen-that a perfectly even and uniform pressureis applied to the movable leaf and there can be no rocking motion tostrain the hinge or lose power.

ln the form of the invention shown in Fig. 4 a similar arrangement isshown which accomplishes the same results, but in this ease the link 19is pivoted directly to a link -31 which is pivoted to a bracket 32 atone On account of this con.'-A

which the links 19 and 3l. are pivoted to each other they are alsopivoted to an arm 33 which is fixed on, or forms part of, a horizontalshaft 34 extending across the fixed leaf of the bellows. This shaft hasanother arm 35 at the corresponding point on the other sidewhich isconnected by a link 36 with the other bracket 32. In this way the sameresults are secured.

lWhile I have illustrated and described two preferred embodiments of theinvention I am aware that .many other modifications can be made thereinby any person skilled in the art without departing from the scope of theinvention as expressed in the claims.-

Therefore I Vdo not wish to be limited to all the details ofconstruction herein shown and described, but

1 Tl1e combination with a bellows having a fixed and a movable leaf, ofa pedal located at the side of the bellows, a shaft journaled on thefixed leaf, and two arms on opposite ends of the shaft, one connectedwith the pedal and the other with said movable leaf.

2.' The combination with a bellows having a fixed and a movable leaf, ofa folding pedal located inposition to fold in at the side of thebellows, bearings on the fixed leaf of the bellows, a horizontal shaftmounted in said bearings, a connection between the shaft and foldingpedal at one side of the fixed leaf whereby the operation of the pedalwill oseillate the shaft at the center of the fixed leaf, and means onsaid shaft for moving the movable leaf of the bellows when the shaft isoscillated.

8. The combination with a bellows having a: fixed and movable leaf, of afolding pedal located in positionto fold at the side of the bellows, alink on the pedal at the side toward the bellows, an arm pivotallyconnected with said link, a shaft on the bellows on which said arm ismounted, and means on said shaft `for exerting an evenly balanced`pressure on the movable leaf of the bellows when the shaft is turned,said means comprising an arm on the shaft, and a link pivoted to saidarm and to'the movable'leaf of the bellows, said link and arm being inline with each other and with the center of the bottom of said movableleaf.

4. As an article of manufacture, abellows having on the fixed leafthereof a shaft provided with an arm at the center of said leafpivotally connected with theother leaf and having at the end of theshaft and at the side of the bellows an operating arm.

In testimony whereof I have hereunto set my hand, in the presence of twosubscribing witnesses.

'THOMAS DANQUARD. `Witnesses VILLTAM J. Klinnn'y, WILLIAM J. KARTEN,

